Looking for a stock tune for my 2016 LML for EFILive... did the TIS lookup for my vin on GM and figured out my segment part #s. I found one stock tune that has 7/8 matching segments (everything but system), and a separate that has the other one (system). Can I just segment swap the system segment from one into the other to build my stock file?

Segment swapped, EFI Live checksums all good. Is there anyway to confirm the EFI Live checksum matches the TIS CVN so I can be certain me “stock” files I downloaded off the net haven’t been tinkered with?